diff --git a/app/Admin/Controllers/AuthController.php b/app/Admin/Controllers/AuthController.php
index 412362a..4b6b1ad 100644
--- a/app/Admin/Controllers/AuthController.php
+++ b/app/Admin/Controllers/AuthController.php
@@ -49,6 +49,10 @@ class AuthController extends AdminAuthController
                 $openid = $request->input('openid');
                 $open_type = $request->input('open_type');
                 if ($openid && $open_type) {
+                    UserSocialite::where([
+                        'type' => SocialiteType::from($open_type),
+                        'user_type' => $user->getMorphClass(),
+                    ])->update(['user_id' => null]);
                     UserSocialite::updateOrCreate([
                         'type' => SocialiteType::from($open_type),
                         'user_type' => $user->getMorphClass(),